cc-arc

Does Claude Code follow the Explore → Code → Verify arc? Analyze how sessions evolve across 3 phases.

npx cc-arc

Zero dependencies. Reads ~/.claude/projects/ directly.

Output

cc-arc — Session Arc Analyzer
==============================
Sessions analyzed: 1,595 (≥9 tool calls)
Mode-locked sessions (same dominant all 3 thirds): 551 (34.5%)

Tool Distribution Across Session Arc (first → middle → last)
-------------------------------------------------------------
Glob         ████░░░░░░░░░░░░░░░░  3.4% →  2.0% →  1.0%   -2.4%↓
Edit         ██████████░░░░░░░░░░ 11.5% → 12.7% → 13.5%   +2.0%↑
Grep         ████████░░░░░░░░░░░░  8.2% →  8.8% →  9.2%   +0.9%↑
Bash         ██████████████████░░ 37.7% → 37.1% → 37.8%   +0.1%→
Read         █████████░░░░░░░░░░░ 24.6% → 25.9% → 24.8%   +0.2%→
WebSearch    █░░░░░░░░░░░░░░░░░░░  1.8% →  1.7% →  1.5%   -0.4%↓
Write        ████░░░░░░░░░░░░░░░░  4.3% →  3.4% →  4.2%   -0.1%→
WebFetch     █░░░░░░░░░░░░░░░░░░░  1.0% →  1.0% →  0.9%   -0.1%→

Top Session Arc Patterns
------------------------
Verify→Verify→Verify            257   16.1% [locked]
Read→Read→Read                  196   12.3% [locked]
Explore→Read→Read               129    8.1%
Web→Web→Web                     117    7.3% [locked]
Read→Read→Verify                 72    4.5%
Read→Verify→Verify               71    4.5%

What it tells you

The Explore → Code → Verify arc is a myth.

• Bash (Verify) is flat at 37% across all 3 thirds — Claude Code verifies constantly, not just at the end
• 34.5% of sessions are mode-locked — sessions stay in the same mode throughout
• Glob is the one front-loaded tool (3.4% → 1.0%, -2.4%) — file discovery happens first, then stops
• Edit is the one back-loaded tool (+2.0%) — coding concentration grows toward the end
• Most common complex arc: Explore→Read→Read (8.1%) — explore to orient, then read deeply

The real picture

| Finding | What it means | |---------|--------------| | Verify flat throughout | Bash isn't a "final phase" — it's constant background verification | | Mode-locked 35% | Sessions are often single-purpose from start to finish | | Glob front-loaded | File discovery is a distinct opening move | | Edit back-loaded | Writing code builds momentum over time |

Options

npx cc-arc --json     # Raw JSON output

Browser version

yurukusa.github.io/cc-arc — drag and drop your projects folder.

Part of cc-toolkit — tools for understanding your Claude Code sessions.

Want to optimize how Claude Code uses its tools?

Claude Code Ops Kit ($19) — 10 production hooks + 6 templates + 3 tools. Built from 140+ hours of autonomous operation.

Source: yurukusa/cc-arc